Apparatus for producing gas.



No. 814,279. PATENTED MAR. 6, 1906. G. ELLIS. APPARATUS PGR PRODUCING GAS.

APPLICATION FILED OCT. 21. 1905.

WITNESSES:

PATENT OFFICE.

GARLETON ELLIS, OF WHITE PLAINS, NEW YORK.

APPARATUS FOR PRODUCING GAS- Specification of Letters Patent.

Patented March 6, 1906.

Application filed October 21, 1905. Serial No. 283.832.

To all whom it may concern.-

Be it known that I, CARLETON ELLIs, a citizen of the United'States, and a resident of White Plains, in the county of Westchester and State of New York, have invented'certain new and useful Improvements in A paratus for Producing Gas, ofwhich the followin is a specification.

his invention relates to apparatus for the production of producer-gas in which washed and cooled products, of combustion are used for the purpose .of regulating and controlling the temperature of the gas-producing fuel mass. i

The desirability of cooling products of combustion prior to introduction into gas-producers is well known in the art, being described in Patent N 0. 790,253, granted to me on the 16th day of May, 1905. Such cooling may be effected in various Ways, and in the patent referred to I'have shown a series of radiating fins as being a form of apparatus suitable for the purpose. The apparatus there shown does not, however, purify the products f combustion sufficiently for some applicatio s, for it fails to free said products;

Purification 'I from furnace or flue dust. find to be often necessary, especiall with the stack-gas of furnaces worked un er draft, and conse uently discharging waste gases char ed wit solid matter in suspension. Suc solid matter is a source of annoyance in that it chokes the roducer in the lower part about the twyers, w ere an open or free working fire is especially needed. This is the case in the operation of open-hearth steel furnaces, particularly during the boil,

when large quantities of iron oxid ap ear in the stack-gases and eventually clog t e producer-fire. Again, the mixture thus discharged'may be of an easily-fusible character, and therefore tend to brinfg about the formation of clinker through its uxing action upon the ash of the coal. e I

The present invention has for its object the washing and cooling of the gases, preferably in one operation, in such a manner that the gases are delivered to the producer at the low temperature desired and are freed from all deleterious suspended matter.

The accompanying diagrammatic drawing shows the apparatus in elevation.

In the drawing, 1 is a gas-producer having the hoppers 2, the gas-outlet 3, ,water seal 4, twyers 5, blast-trunk 6, and damper 7 strong 19 is a damper placed in the blast-trunk 6 and operated y the rod 20.

21 is a safety device consisting of a cone filled with sand or Weighted in some other manner and resting in a circular opening in the trunk 6.

The operation of the apparatus is ,as follows: Furnace-gases are drawn from the stack 10 through the passage 11 into the tower 12. As they enter at a high temperature and laden with dust theyv meet a' downwardlyflowing stream of water, whereby cooling and washing are simultaneously instituted, the gases moving upwardly through the tower and being withdrawn near the top properlycooled and purified. In the pipe or conduit 15 admixture with air maybe brought about by adjustment of the dampers 17 and 18 in order to produce an endothermic mixture capable of maintaining the producer-fire at the proper temperature. Cooled gases are admixed with air, ifnecessary, and forced by the fan into the producer 1. Cooling of the gases besides enabling the better control of the producer tem erature also serves as a. protection to the an-blOwer or jet or other draft appliance em loyed. With cooled gases the blast-impel ing means may be of smaller size and worked at slowerspeed than would be the case with hot gases, 'and this is an important consideration, as equipments destined for such use are often left in charge of unskilled workmen and slow-moving machinery handling coolgases requires less attention and is less likely to get out of order than high-speed machinery'handling gases at a very high tem erature. One advantage of this apparatus damping action exerted by the washingtower on such explosive mixtures as. may form either through the backflow of the roducer-gas or through the entrance of com ustible gas from the stack through defective reversing-valves or otherwise. The watericc' erein described lies in the s my in the washing-tower effectually checks t .e travel of ignition of the explosive mire ture. The proper proportionin of air to the stackeses is best eccom lishe by triel, inesmuc as different fue s require different proportions of carbon dioxid to prevent the formation ofclinker. The e peretus is such. that such adjustment is easily effected, end the operator has no difliculty in regulating the composition of the blast mixture to produce the results desired. Regard should of course he held for such temperature regulation es will sufiice to generate the maximum quantity of volatile hydrocarbons from the coal when bituminous coal is employed. As it rulethe cooler the entering producer-hlest the richer isthe producer-gas in volatile hydrocarbons.

Whet I claim is I I 1. A gets-producing plant com rising ev gesproducer, e source of products 0]. combustion, and means for washing ssid products and introducing the same into the producer.

2. gcs-producing plant com rising a gas producer and means for intro ucing there into washed products of combustion and air in reguleted proportions.

'3 A. ges-producing plant comprising at gas producer, at source of hot products of comhus tion, it washing-tower and means for conveying said products through the washing-tower and into the producer.

4. A gas-producing pl ant comprising a gas producer, a sourceof hot products of combustion, a weshing-tower meens for conveying said products through the washing-tower end into the producer, and means for admixing regulated proportions of air with said products prior to entry intothe'producer;

5; A gasproducing plant comprising a fuel-burning furnace, provided with e chimney-stack, a gas-washer, e gasroducer and pipe connections provided wit it draft-fen for causing e flow of waste gases from the stack through the washer into the producer, said pipe connections being also rovided with meens for admixing regulate proportions of air with the gases therein.

Signed at New York city, in the countyof New York and State of New York, this 4th dey of October, A. D. 1905.

CARLETON ELLIS. 

